[Amps] 4CX1500B

[R.Measures]

On Sep 20, 2005, at 11:25 PM, robert briggs wrote:

> This one may have been asked before.Over the past few years I have 
> constructed a few amplifiers using pairs of 4CX250/350B tubes in Super 
> Cathode Driven Mode,The Screen Grid grounded and the Control Grid tied 
> to the Cathode.The amplifier's have been quite reliable and I havn't 
> worn a tube out yet despite some quite hard use from time to time.
> I got the idea origionally from an article by Orr and Sayer in QST 
> July 1967.
> I am wondering if this method could be applied to the 4CX1500B.

Yes, provided you need an amplification of c. 5x.

> I have a few new tube's and a socket or two but can't be bothered with 
> Grid Bias and Screen voltages and all the extra circutry involved.
> I would be interested in some good technical opinion's.
> Regards all from Bob VK3ZL..
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Richard L. Measures, AG6K, 805.386.3734.  www.somis.org